Timeline for Why does this high pass filter behave like a band-pass filter on Multisim AC Sweep simulations?
Current License: CC BY-SA 4.0
17 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 21, 2023 at 17:10 | comment | added | Math Keeps Me Busy | @audioguru There are many radio frequency op-amps. Here is a sample from AD "Selection Table for Video Operational Amplifiers (Op Amps) | Parametric Search | Analog Devices: analog.com/en/parametricsearch/13042# | |
| Jan 21, 2023 at 17:00 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Sep 21, 2022 at 9:04 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| May 19, 2022 at 12:08 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 19, 2022 at 10:04 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Dec 4, 2021 at 3:56 | history | edited | ocrdu | CC BY-SA 4.0 |
added 4 characters in body; edited title
|
| Dec 4, 2021 at 3:06 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 11, 2020 at 9:13 | comment | added | Andy aka | Reasons not to use a 741. | |
| Jun 11, 2020 at 0:06 | comment | added | Audioguru | The 741 opamp is 52 years old and has a poor high frequency response and trouble with its slew rate above 9kHz. Most modern audio opamps work well up to 100kHz but I have never seen an opamp in a radio frequency circuit. | |
| Jun 10, 2020 at 21:57 | answer | added | Leoman12 | timeline score: 1 | |
| Jun 10, 2020 at 21:49 | comment | added | SamGibson♦ | mberkkaratas - I have removed your request for members here to contact you by email. If you write a question here, then the question and its answers are public. You can click "follow" below the question, if you want to be notified of every change. In most cases, if someone has a question for you (e.g. a request for further information) you will get a notification in your SE "inbox" and you can setup your profile to send an email 3 hrs later (or daily, or weekly) of those notifications. But if you ask a question, it's better that you check your inbox here very frequently for messages as well. | |
| Jun 10, 2020 at 21:42 | history | edited | SamGibson♦ | CC BY-SA 4.0 |
Fixed the syntax, so that the schematic is displayed inline. Removed request for users to contact the OP by email. The site philosophy is for questions & answers to be public and visible for everyone.
|
| Jun 10, 2020 at 21:38 | comment | added | glen_geek | Do you really need a gain of 2 above 1 MHz? Try substituting an op amp that has some gain above 1 MHz (a 741 doesn't). | |
| Jun 10, 2020 at 21:38 | comment | added | G36 | Your RC filter corner frequency is Fc = 0.16/(10nF * 7.5k Ohm) = 2.2KHz but your op-amp also does not have an infinite bandwidth. And for the gain of 2V/V the corner frequency for LM741 is F = 1MHz/(2 +1) = 333kHz | |
| Jun 10, 2020 at 21:36 | comment | added | relayman357 | It’s probably the 741 you are using. | |
| Jun 10, 2020 at 21:34 | review | First posts | |||
| Jun 11, 2020 at 20:26 | |||||
| Jun 10, 2020 at 21:28 | history | asked | mberkkaratas | CC BY-SA 4.0 |